diff --git a/packages/compiler/src/render3/r3_module_compiler.ts b/packages/compiler/src/render3/r3_module_compiler.ts
index 8b83f25931..921bae7ecf 100644
--- a/packages/compiler/src/render3/r3_module_compiler.ts
+++ b/packages/compiler/src/render3/r3_module_compiler.ts
@@ -107,7 +107,8 @@ export function compileInjector(meta: R3InjectorMetadata): R3InjectorDef {
     providers: meta.providers,
     imports: meta.imports,
   })]);
-  const type = new o.ExpressionType(o.importExpr(R3.InjectorDef));
+  const type =
+      new o.ExpressionType(o.importExpr(R3.InjectorDef, [new o.ExpressionType(meta.type)]));
   return {expression, type};
 }
 
diff --git a/tools/public_api_guard/core/core.d.ts b/tools/public_api_guard/core/core.d.ts
index 04893d869f..09052c005c 100644
--- a/tools/public_api_guard/core/core.d.ts
+++ b/tools/public_api_guard/core/core.d.ts
@@ -408,6 +408,12 @@ export declare abstract class Injector {
 /** @experimental */
 export declare const INJECTOR: InjectionToken<Injector>;
 
+export interface InjectorDef<T> {
+    factory: () => T;
+    imports: (InjectorType<any> | InjectorTypeWithProviders<any>)[];
+    providers: (Type<any> | ValueProvider | ExistingProvider | FactoryProvider | ConstructorProvider | StaticClassProvider | ClassProvider | any[])[];
+}
+
 /** @experimental */
 export interface InjectorType<T> extends Type<T> {
     ngInjectorDef: never;